Does the trolley need new incentives and if so, what are they?

As it stands trolley games were designed to be a huge part of the game by Disney - plenty of minigames that could be played for fun with your friends. I think Jesse Schell said it (don't quote me on this) that there was a Trolley, Gags, Cogs cycle that kept repeating - and kept you playing trolley games.

As time has gone on, the trolley has definitely become optional given how many ways there are to earn jellybeans now. Jellybeans are the only reward, but fishing, beanfests and just for fun tasks are considered by most people to be more efficient. All three of these methods while getting you more jellybeans by far, have less content than the trolley.

Should there be new rewards/content for the trolley? Maybe more jbs or laff boosts? I'm undecided but it would be interesting to see what people think.

Ring Game, Match Minnie, Toon Memory, and Cannon Game are the only games worth playing. Coincidentally, they are the ones that appear far less frequently than others. Additionally, you need at least one other person to play Match Minnie.
I wish I enjoyed the trolley more. Fishing generates a much higher profit quicker, and once you complete all the core tasks you can get 1000 jelly beans at a time with little to no effort via Just For Funs. So yes, either the staff needs to add more incentives, or just make the jellybean reward much higher. (Maze Game and Toon Slingshot are both difficult games, but give back little jelly beans.)

Hmm, I think so, but maybe more games that utilize the same mechanisms as the final part of boss battles for practice. Cog Thief is a similar concept to the VP pie round and throwing evidence in the CJ, then there's the Cannon Game, so why not add something like cranes and squirting at targets for the CFO and CEO? Becoming an adept dodger of attacks would be good practice too with a little game akin to dodge ball.

You could win some kind of mastery badges from this to show off your skill level on Toon Details at the HQs in addition to jellybeans.